The first thing a boiler operator should do when entering a boiler room is ___.

A ___ valve is a type of globe valve that allows a boiler to be cut in on-line automatically when the boiler pressure is at or above the header pressure.

In ANSI Standard Z400.1/Z129.1-2006, Hazardous Workplace Chemicals — Hazard Evaluation and Safety Data Sheet Precautionary Labeling Preparation, Section ___, Hazard(s) Identification includes all hazards regarding the chemical and required label elements.

An electric spark igniter is a device located at a burner that uses a small piece of silicon nitride, which produces high temperatures when electric current passes through it.

An electric spark igniter is a device located at a burner that uses a small piece of silicon nitride, which produces high temperatures when electric current passes through it.

Fuel oil characteristics include viscosity, pour point, flash point, fire point, volatility, and heating value.

The fire point temperature is higher than the flash point temperature.

The fire point temperature is higher than the flash point temperature.

Increased water surface tension on boiler water can lead to foaming, causing rapid fluctuations in water level.

The amount of natural draft produced increases with the height of a stack.